White Square EPS (Non Squishy) Hard Foam Block Cubes by MT Products (7" X 7" X 7") (2 Pieces) : Amazon.ca: Toys & Games
White Styrofoam/polystyrene/eps Foam Block 12 X - Etsy Canada
EPS - Large Block EPS 48"x96"x25", White Expanded Polystyrene | Mold making materials, Foam blocks, Foam carving
36 in x 48 in x 96 in EPS Foam Block - 1 lb at J & B Materials
Silverlake Large Craft Foam Block - 11x17x7 EPS Polystyrene Blocks for Crafting, Modeling, Art Projects and Floral Arrangements - Sculpting Blocks for DIY School & Home Art Projects : Amazon.ca: Home